<TABLE> <S> <C>

<ARTICLE> 5
<RESTATED>
<MULTIPLIER> 1000

<S>                                        <C>           <C>           <C>           <C>            <C>
<PERIOD-TYPE>                              YEAR          YEAR          3-MOS         6-MOS          9-MOS
<FISCAL-YEAR-END>                          DEC-31-1995   DEC-31-1996   DEC-31-1996   DEC-31-1996    DEC-31-1996
<PERIOD-END>                               DEC-31-1995   DEC-31-1996   MAR-31-1996   JUN-30-1996    SEP-30-1996
<CASH>                                           9,549        12,628           470         7,237         25,098
<SECURITIES>                                         0             0             0             0              0
<RECEIVABLES>                                   22,688        25,268             0             0              0
<ALLOWANCES>                                       424           254             0             0              0
<INVENTORY>                                     42,581        38,226        50,449        44,895         35,515
<CURRENT-ASSETS>                               108,869        86,506       111,604       111,974         94,268
<PP&E>                                         292,919       322,260       294,291       306,029        310,080
<DEPRECIATION>                                  94,357       108,715        97,066       100,986        104,818
<TOTAL-ASSETS>                                 324,862       324,007       325,915       333,930        323,606
<CURRENT-LIABILITIES>                           58,541        64,965        61,609        66,108         72,242
<BONDS>                                        142,676       113,081       138,603       130,458        106,837
<PREFERRED-MANDATORY>                                0             0             0             0              0
<PREFERRED>                                          0             0             0             0              0
<COMMON>                                           122           122             0             0              0
<OTHER-SE>                                     109,610       122,002             0             0              0
<TOTAL-LIABILITY-AND-EQUITY>                   324,862       324,007       325,915       333,930        323,606
<SALES>                                        332,888       499,184       104,100       239,743        375,775
<TOTAL-REVENUES>                               332,888       499,184       104,100       239,743        375,775
<CGS>                                          234,271       361,864        73,960       166,678        267,245
<TOTAL-COSTS>                                  299,472       443,852        93,464       206,336        327,552
<OTHER-EXPENSES>                                     0             0             0             0              0
<LOSS-PROVISION>                                     0             0             0             0              0
<INTEREST-EXPENSE>                              11,506        12,318             0             0              0
<INCOME-PRETAX>                                 11,371        28,183         3,675        17,988         26,723
<INCOME-TAX>                                     3,638        11,132         1,350         6,970         10,422
<INCOME-CONTINUING>                              7,733        17,051         2,325        11,018         16,301
<DISCONTINUED>                                     143           (13)           79             7            (13)
<EXTRAORDINARY>                                      0             0             0             0              0
<CHANGES>                                            0             0             0             0              0
<NET-INCOME>                                     7,876        17,038         2,404        11,025         16,288
<EPS-PRIMARY>                                     0.69          1.52          0.21          0.98           1.45
<EPS-DILUTED>                                     0.68          1.50          0.21          0.97           1.43


</TABLE>